When your engine is switched off, the relay will isolate your leisure battery(s) from your main starter battery. So it does not drain your main starter battery and you will always be able to start your vehicle.
eBay
When your engine is switched off, the relay will isolate your leisure battery(s) from your main starter battery. So it does not drain your main starter battery and you will always be able to start your vehicle.
eBay
Suitable for most 12V charging systems- Surge protection. Dual Battery Isolators also feature surge protection and a L.E.D indicator designed to alert the user when the unit is engaged. When your engine is switched off, the relay will isolate your leisure battery(s) from your main starter battery.
eBay
When your engine is switched off, the relay will isolate your leisure battery(s) from your main starter battery. So it does not drain your main starter battery and you will always be able to start your vehicle.
eBay
All the leads are supplied ready made up for you to a very high standard. 1 x 250mm 110amp Red Starter Battery to fuse box lead. When your engine is switched off, the relay will isolate your leisure battery(s) from your main starter battery.
eBay
10mm Sq red cable (1m long). 10mm Sq Black cable (1M long). Your main battery will not go flat and you will always be able to start your vehicle. The kit has everything that you need to install a split charging system in your vehicle including a relay (HC Cargo) that prevents your main battery from draining while the engine is stopped.
eBay
When your engine is switched off, the relay will isolate your leisure battery(s) from your main starter battery. So it does not drain your main starter battery and you will always be able to start your vehicle.
eBay
When your engine is switched off, the relay will isolate your leisure battery(s) from your main starter battery. So it does not drain your main starter battery and you will always be able to start your vehicle.
eBay